// Copyright (C) Kumo inc. and its affiliates.
// Author: Jeff.li lijippy@163.com
// All rights reserved.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.
//

#pragma once

#include <cstdint>
#include <memory>

#include <turbo/base/macros.h>

namespace nebula::internal {

    // A helper function for doing memcpy with multiple threads. This is required
    // to saturate the memory bandwidth of modern cpus.
    void parallel_memcopy(uint8_t *dst, const uint8_t *src, int64_t nbytes,
                          uintptr_t block_size, int num_threads);

    // A helper function for checking if two wrapped objects implementing `Equals`
    // are equal.
    template<typename T>
    bool SharedPtrEquals(const std::shared_ptr<T> &left, const std::shared_ptr<T> &right) {
        if (left == right) return true;
        if (left == nullptr || right == nullptr) return false;
        return left->equals(*right);
    }

}  // namespace nebula:internal
